2021-02-15 / 4UC 620-033947 / (356) Liguria
# | OBS | Observer | Occ | Meth. | Instr. | CC | TSRC | UT1 | UT2 | UT3 | UT4 | UT2E | UT3E | Dur. | Chrd |
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1 | show | Filipe Dias | O+ | CCD | M212 | PT | GPS++ | 23:20:03 | 23:22:08.16 | 23:22:29.65 | 23:24:02 | 0.13 | 0.13 | 21.49 | 116.0 |
2 | show | Rui Goncalves | O+ | VID | M254 | PT | GPS++ | 23:20:29 | 23:21:19.24 | 23:21:38.88 | 23:22:29 | 0.12 | 0.10 | 19.64 | 106.1 |
2 observations found in db: euraster
Available (probably) matching predictions (click on the link to switch):JPL#92 : 824adce4-a7e5-4db0-92cd-8ad80102b7bb [db: observed] |
Using prediction 824adce4-a7e5-4db0-92cd-8ad80102b7bb for map and profile fit
Ellipse and circular profile fits to the timings (chords) |
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Auto-Fit Result: X0,Y0 = -2478.0, 23.0 km Circular diameter = 116 km From 2 chords (VID,CCD) You can enter space separated chord numbers (example: 11 4 8) or a method like VIS to ignore all visual timings, or a time source like RAD and NTP (but not GPS). If the plot disappears, then there are less than 2 chords left (too much ignored, go back with browser). Check SiMDA for size and mass data. Check Johnston Archive for satellites. |
Map with groundtrack and observer stations |
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Event Details |
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Occultation UUID [and DB] : 824adce4-a7e5-4db0-92cd-8ad80102b7bb [observed] Occultation Date + Time : 2021-02-15 at 23:20:40 UT +/- 0.06 min [1] Object Designation : (356) Liguria Orbit Class : MBA Star Designation : GDR3 3440398791283489152 Star Coordinates (ICRF) : RA = 06 23 53.5452, DE = +33 56 29.685 [2] Star Magnitudes : G = 12.52 mag, RP = 11.76 mag, BP = 13.14 mag Object Magnitude : V = 11.96 mag Estimated Magnitude Drop : 0.5 mag Estimated Max. Duration : 24.4 sec Object Mean Diameter : 131 km (src: astorb) Speed of the shadow : 5.4 km/s Elongation to Moon & Sun : 80° (sunlit = 17%), Sun = 127° Cross-track uncertainty : 1.7 mas = 1 km = 0.01 path-width (1-sig) RUWE and duplicate source : 1.01 mas, dup.src = 0 (0:false, 1:true) Ephemeris Reference : JPL#92 [1] time t0 of closest geocentric approach c/a, [2] including proper motion until t0 |
More Data and Informations |
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(If error 404: link not valid which means no data available)
Aladin Sky Atlas |
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Aladin Lite direct link (has Gaia overlay) |